./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b50f176f9cc083683ce70010cc4357ff865e696 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:46:00,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:00,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:00,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:00,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:00,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:00,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:00,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:00,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:00,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:00,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:00,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:00,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:00,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:00,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:00,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:00,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:00,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:00,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:00,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:00,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:00,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:00,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:00,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:00,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:00,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:00,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:00,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:00,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:00,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:00,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:00,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:00,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:00,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:00,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:00,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:00,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:00,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:00,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:00,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:00,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:00,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:46:00,546 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:00,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:00,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:00,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:00,557 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:00,557 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:46:00,557 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:46:00,557 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:46:00,558 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:46:00,558 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:46:00,558 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:46:00,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:00,558 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:00,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:46:00,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:46:00,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:00,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:00,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:46:00,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:46:00,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:46:00,561 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:00,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:00,561 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:46:00,561 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:00,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:46:00,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:00,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:00,562 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:46:00,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:00,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:46:00,564 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:46:00,564 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:46:00,565 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2019-11-25 08:46:00,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:00,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:00,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:00,753 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:00,754 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:00,754 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-11-25 08:46:00,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/data/0d680e4d4/2d9ffdb0751a44fdbee59904fd97a307/FLAGc3ba3bb39 [2019-11-25 08:46:01,274 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:01,275 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-11-25 08:46:01,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/data/0d680e4d4/2d9ffdb0751a44fdbee59904fd97a307/FLAGc3ba3bb39 [2019-11-25 08:46:01,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/data/0d680e4d4/2d9ffdb0751a44fdbee59904fd97a307 [2019-11-25 08:46:01,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:01,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:01,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:01,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:01,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:01,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:01" (1/1) ... [2019-11-25 08:46:01,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6afe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:01, skipping insertion in model container [2019-11-25 08:46:01,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:01" (1/1) ... [2019-11-25 08:46:01,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:01,734 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:02,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:02,175 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:46:02,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:02,270 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:46:02,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02 WrapperNode [2019-11-25 08:46:02,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:02,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:02,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:46:02,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:46:02,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:02,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:46:02,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:46:02,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:46:02,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... [2019-11-25 08:46:02,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:46:02,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:46:02,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:46:02,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:46:02,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:46:02,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:46:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:46:02,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:46:02,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:46:03,209 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:46:03,209 INFO L284 CfgBuilder]: Removed 124 assume(true) statements. [2019-11-25 08:46:03,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:03 BoogieIcfgContainer [2019-11-25 08:46:03,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:46:03,211 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:46:03,211 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:46:03,213 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:46:03,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:46:03,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:46:01" (1/3) ... [2019-11-25 08:46:03,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc121ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:46:03, skipping insertion in model container [2019-11-25 08:46:03,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:46:03,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:02" (2/3) ... [2019-11-25 08:46:03,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc121ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:46:03, skipping insertion in model container [2019-11-25 08:46:03,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:46:03,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:03" (3/3) ... [2019-11-25 08:46:03,216 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2019-11-25 08:46:03,261 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:46:03,261 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:46:03,261 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:46:03,261 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:46:03,262 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:46:03,262 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:46:03,262 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:46:03,262 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:46:03,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states. [2019-11-25 08:46:03,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2019-11-25 08:46:03,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:03,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:03,312 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:46:03,312 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:03,312 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:46:03,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states. [2019-11-25 08:46:03,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2019-11-25 08:46:03,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:03,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:03,320 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:46:03,320 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:03,325 INFO L794 eck$LassoCheckResult]: Stem: 47#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 35#L578true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 66#L586true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 89#L130true assume 0 != main_~tmp~0; 37#L103true havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L171-1true [2019-11-25 08:46:03,326 INFO L796 eck$LassoCheckResult]: Loop: 16#L171-1true assume !false; 5#L793true assume test_~splverifierCounter~0 < 4; 55#L794true test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 60#L802true assume !(0 != test_~tmp~8); 62#L802-1true test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 38#L812true assume !(0 != test_~tmp___0~2); 42#L812-1true test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 14#L822true assume 0 != test_~tmp___2~0; 70#L828-1true assume !(0 != ~pumpRunning~0); 52#L604true assume !(0 != ~systemActive~0); 34#L611true havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 26#L892-1true __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 32#L165true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 16#L171-1true [2019-11-25 08:46:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:46:03,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:03,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978940368] [2019-11-25 08:46:03,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:03,671 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:03,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:03,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602498, now seen corresponding path program 1 times [2019-11-25 08:46:03,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:03,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668174048] [2019-11-25 08:46:03,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:03,688 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:03,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:03,689 INFO L82 PathProgramCache]: Analyzing trace with hash 41676440, now seen corresponding path program 1 times [2019-11-25 08:46:03,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:03,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182511770] [2019-11-25 08:46:03,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:03,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182511770] [2019-11-25 08:46:03,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:03,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:46:03,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189608434] [2019-11-25 08:46:03,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:46:03,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:46:03,981 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 6 states. [2019-11-25 08:46:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:04,219 INFO L93 Difference]: Finished difference Result 234 states and 327 transitions. [2019-11-25 08:46:04,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:46:04,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 327 transitions. [2019-11-25 08:46:04,237 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 149 [2019-11-25 08:46:04,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 213 states and 306 transitions. [2019-11-25 08:46:04,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 213 [2019-11-25 08:46:04,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2019-11-25 08:46:04,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 213 states and 306 transitions. [2019-11-25 08:46:04,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:46:04,257 INFO L688 BuchiCegarLoop]: Abstraction has 213 states and 306 transitions. [2019-11-25 08:46:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states and 306 transitions. [2019-11-25 08:46:04,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 132. [2019-11-25 08:46:04,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-25 08:46:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 189 transitions. [2019-11-25 08:46:04,305 INFO L711 BuchiCegarLoop]: Abstraction has 132 states and 189 transitions. [2019-11-25 08:46:04,306 INFO L591 BuchiCegarLoop]: Abstraction has 132 states and 189 transitions. [2019-11-25 08:46:04,306 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:46:04,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 189 transitions. [2019-11-25 08:46:04,314 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2019-11-25 08:46:04,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:04,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:04,315 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:46:04,315 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:04,316 INFO L794 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 369#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 370#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 394#L586 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 417#L130 assume 0 != main_~tmp~0; 395#L103 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 347#L171-1 [2019-11-25 08:46:04,316 INFO L796 eck$LassoCheckResult]: Loop: 347#L171-1 assume !false; 348#L793 assume test_~splverifierCounter~0 < 4; 349#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 412#L802 assume !(0 != test_~tmp~8); 393#L802-1 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 396#L812 assume !(0 != test_~tmp___0~2); 397#L812-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 366#L822 assume 0 != test_~tmp___2~0; 367#L828-1 assume !(0 != ~pumpRunning~0); 363#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 377#L636 assume !(0 == ~pumpRunning~0); 378#L611 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 385#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 386#L165 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 347#L171-1 [2019-11-25 08:46:04,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:04,316 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:46:04,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:04,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574325175] [2019-11-25 08:46:04,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:04,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:04,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:04,456 INFO L82 PathProgramCache]: Analyzing trace with hash -352838738, now seen corresponding path program 1 times [2019-11-25 08:46:04,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:04,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697491063] [2019-11-25 08:46:04,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:04,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697491063] [2019-11-25 08:46:04,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:04,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:46:04,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908013598] [2019-11-25 08:46:04,469 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:46:04,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:04,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:46:04,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:46:04,470 INFO L87 Difference]: Start difference. First operand 132 states and 189 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-11-25 08:46:04,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:04,548 INFO L93 Difference]: Finished difference Result 177 states and 241 transitions. [2019-11-25 08:46:04,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:46:04,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 241 transitions. [2019-11-25 08:46:04,552 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2019-11-25 08:46:04,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 241 transitions. [2019-11-25 08:46:04,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2019-11-25 08:46:04,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2019-11-25 08:46:04,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 241 transitions. [2019-11-25 08:46:04,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:46:04,556 INFO L688 BuchiCegarLoop]: Abstraction has 177 states and 241 transitions. [2019-11-25 08:46:04,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 241 transitions. [2019-11-25 08:46:04,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2019-11-25 08:46:04,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-11-25 08:46:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 241 transitions. [2019-11-25 08:46:04,568 INFO L711 BuchiCegarLoop]: Abstraction has 177 states and 241 transitions. [2019-11-25 08:46:04,568 INFO L591 BuchiCegarLoop]: Abstraction has 177 states and 241 transitions. [2019-11-25 08:46:04,568 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:46:04,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 241 transitions. [2019-11-25 08:46:04,570 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2019-11-25 08:46:04,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:04,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:04,571 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:46:04,571 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:04,572 INFO L794 eck$LassoCheckResult]: Stem: 725#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 684#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 685#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 711#L586 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 741#L130 assume 0 != main_~tmp~0; 715#L103 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 716#L171-1 [2019-11-25 08:46:04,572 INFO L796 eck$LassoCheckResult]: Loop: 716#L171-1 assume !false; 811#L793 assume test_~splverifierCounter~0 < 4; 733#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 734#L802 assume !(0 != test_~tmp~8); 709#L802-1 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 712#L812 assume !(0 != test_~tmp___0~2); 713#L812-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 681#L822 assume 0 != test_~tmp___2~0; 682#L828-1 assume !(0 != ~pumpRunning~0); 746#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 695#L636 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 659#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 660#L937 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 724#L756 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 756#L756-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 748#L762 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 721#L640 assume !(0 != processEnvironment_~tmp~5); 707#L611 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 698#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 699#L165 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 716#L171-1 [2019-11-25 08:46:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:04,573 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:46:04,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:04,573 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157556559] [2019-11-25 08:46:04,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:04,663 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:04,664 INFO L82 PathProgramCache]: Analyzing trace with hash -539212902, now seen corresponding path program 1 times [2019-11-25 08:46:04,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:04,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094037758] [2019-11-25 08:46:04,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:04,680 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:04,681 INFO L82 PathProgramCache]: Analyzing trace with hash -524500928, now seen corresponding path program 1 times [2019-11-25 08:46:04,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:04,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509494984] [2019-11-25 08:46:04,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:04,751 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509494984] [2019-11-25 08:46:04,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:04,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:46:04,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483128893] [2019-11-25 08:46:04,911 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-25 08:46:04,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:04,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:04,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:04,996 INFO L87 Difference]: Start difference. First operand 177 states and 241 transitions. cyclomatic complexity: 67 Second operand 5 states. [2019-11-25 08:46:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:05,186 INFO L93 Difference]: Finished difference Result 584 states and 797 transitions. [2019-11-25 08:46:05,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:46:05,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 584 states and 797 transitions. [2019-11-25 08:46:05,193 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 437 [2019-11-25 08:46:05,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 584 states to 584 states and 797 transitions. [2019-11-25 08:46:05,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 584 [2019-11-25 08:46:05,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 584 [2019-11-25 08:46:05,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 584 states and 797 transitions. [2019-11-25 08:46:05,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:46:05,202 INFO L688 BuchiCegarLoop]: Abstraction has 584 states and 797 transitions. [2019-11-25 08:46:05,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states and 797 transitions. [2019-11-25 08:46:05,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 348. [2019-11-25 08:46:05,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-25 08:46:05,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 464 transitions. [2019-11-25 08:46:05,219 INFO L711 BuchiCegarLoop]: Abstraction has 348 states and 464 transitions. [2019-11-25 08:46:05,219 INFO L591 BuchiCegarLoop]: Abstraction has 348 states and 464 transitions. [2019-11-25 08:46:05,219 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:46:05,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 348 states and 464 transitions. [2019-11-25 08:46:05,222 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 252 [2019-11-25 08:46:05,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:05,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:05,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:46:05,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:05,224 INFO L794 eck$LassoCheckResult]: Stem: 1511#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1463#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1464#L578 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1495#L586 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1527#L130 assume 0 != main_~tmp~0; 1499#L103 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1500#L171-1 [2019-11-25 08:46:05,224 INFO L796 eck$LassoCheckResult]: Loop: 1500#L171-1 assume !false; 1710#L793 assume test_~splverifierCounter~0 < 4; 1711#L794 test_~tmp~8 := test_#t~nondet60;havoc test_#t~nondet60; 1767#L802 assume !(0 != test_~tmp~8); 1765#L802-1 test_~tmp___0~2 := test_#t~nondet61;havoc test_#t~nondet61; 1763#L812 assume !(0 != test_~tmp___0~2); 1762#L812-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 1760#L822 assume 0 != test_~tmp___2~0; 1531#L828-1 assume !(0 != ~pumpRunning~0); 1516#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1474#L636 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret59, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1440#L932 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1441#L937 isHighWaterLevel_#t~ret59 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret59;havoc isHighWaterLevel_#t~ret59; 1510#L756 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1543#L756-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1545#L762 processEnvironment_#t~ret40 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret40;havoc processEnvironment_#t~ret40; 1656#L640 assume !(0 != processEnvironment_~tmp~5); 1504#L611 havoc __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_#t~ret3, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1717#L892-1 __utac_acc__Specification3_spec__1_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 1716#L165 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1715#L924 __utac_acc__Specification3_spec__1_#t~ret2 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret2;havoc __utac_acc__Specification3_spec__1_#t~ret2; 1712#L171 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1500#L171-1 [2019-11-25 08:46:05,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:05,225 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-25 08:46:05,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:05,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743785504] [2019-11-25 08:46:05,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:05,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:05,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:05,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1507450700, now seen corresponding path program 1 times [2019-11-25 08:46:05,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:05,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433104374] [2019-11-25 08:46:05,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:05,334 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:05,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1534211470, now seen corresponding path program 1 times [2019-11-25 08:46:05,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:05,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724909595] [2019-11-25 08:46:05,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:05,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:05,615 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-25 08:46:05,734 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-11-25 08:46:32,212 WARN L192 SmtUtils]: Spent 26.47 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:46:45,808 WARN L192 SmtUtils]: Spent 13.59 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:46:45,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:46:45 BoogieIcfgContainer [2019-11-25 08:46:45,893 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:46:45,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:46:45,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:46:45,894 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:46:45,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:03" (3/4) ... [2019-11-25 08:46:45,899 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:46:45,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a414af62-90af-4de1-a9fb-c67b3d26c046/bin/uautomizer/witness.graphml [2019-11-25 08:46:45,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:46:45,976 INFO L168 Benchmark]: Toolchain (without parser) took 44322.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.8 MB). Free memory was 944.7 MB in the beginning and 987.8 MB in the end (delta: -43.1 MB). Peak memory consumption was 146.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:45,976 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:45,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:45,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:45,978 INFO L168 Benchmark]: Boogie Preprocessor took 39.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:45,978 INFO L168 Benchmark]: RCFGBuilder took 835.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:45,978 INFO L168 Benchmark]: BuchiAutomizer took 42682.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 990.0 MB in the end (delta: 60.9 MB). Peak memory consumption was 231.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:45,979 INFO L168 Benchmark]: Witness Printer took 81.35 ms. Allocated memory is still 1.2 GB. Free memory was 990.0 MB in the beginning and 987.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:45,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 616.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 835.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 42682.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.9 MB). Free memory was 1.1 GB in the beginning and 990.0 MB in the end (delta: 60.9 MB). Peak memory consumption was 231.4 MB. Max. memory is 11.5 GB. * Witness Printer took 81.35 ms. Allocated memory is still 1.2 GB. Free memory was 990.0 MB in the beginning and 987.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 348 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 41.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 317 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 348 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 416 SDtfs, 1042 SDslu, 1211 SDs, 0 SdLazy, 143 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 792]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1430} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20ea955a=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17f424f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67534492=0, retValue_acc=0, NULL=0, retValue_acc=1, NULL=1430, NULL=1458, NULL=1443, NULL=0, NULL=1465, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=1442, retValue_acc=0, NULL=0, tmp___1=0, tmp=0, NULL=1452, tmp___0=1, NULL=1450, tmp=0, cleanupTimeShifts=4, NULL=1451, NULL=1455, NULL=1431, NULL=1457, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23773fd0=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=1441, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7902611b=0, NULL=1459, retValue_acc=0, \result=0, NULL=1436, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=1449, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71582aa3=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=1437, retValue_acc=1, \result=1, NULL=1446, NULL=1456, NULL=1445, NULL=0, NULL=0, tmp=1, tmp___2=81, tmp___0=0, retValue_acc=1, NULL=1432, splverifierCounter=0, \result=0, NULL=1460, tmp___1=0, head=0, NULL=0, tmp=0, NULL=1444, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44fc508e=0, NULL=0, NULL=1438, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cbe9c4b=81, NULL=1433, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21b423e9=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31ce1156=0, NULL=0, NULL=1447, NULL=0, NULL=1448} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 Loop: [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND FALSE !(\read(tmp)) [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND TRUE \read(tmp___2) [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L633] int tmp ; [L636] COND TRUE ! pumpRunning [L748] int retValue_acc ; [L749] int tmp ; [L750] int tmp___0 ; [L929] int retValue_acc ; [L932] COND TRUE waterLevel < 2 [L933] retValue_acc = 1 [L934] return (retValue_acc); [L754] tmp = isHighWaterSensorDry() [L756] COND TRUE \read(tmp) [L757] tmp___0 = 0 [L761] retValue_acc = tmp___0 [L762] return (retValue_acc); [L638] tmp = isHighWaterLevel() [L640] COND FALSE !(\read(tmp)) [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] tmp___0 = getWaterLevel() [L171] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...